Cylinder body of three-position hydraulic cylinder

The utility model relates to a three-position hydraulic cylinder body which comprises a guide sleeve, a cylinder barrel and an end cover. The cylinder barrel is provided with a cylindrical cylinder hole, and the guide sleeve and the end cover are connected to the two ends of the cylinder barrel in the axial direction of the cylinder hole, so that the cylinder hole is closed to form a liquid cavity. The cylinder hole is a through hole with the constant diameter, and the limiting ring is installed on the hole wall in a clamping mode and used for limiting the moving range of the piston so as to position the middle gear. Meanwhile, the limiting ring is installed in a clamping mode, machining of the cylinder hole can be simplified, and the machining cost is reduced. 本实用新型涉及一种三位液压缸缸体，包括导向套、缸筒及端盖。缸筒设有圆筒形的缸孔，导向套和端盖沿缸孔的轴向连接在缸筒的两端，使缸孔封闭形成液腔。缸孔采用直径不变的通孔，在孔壁上采用卡接的方式安装限位圈，用于限制活塞的移动范围，以进行中间挡位的定位。同时采用卡接的方式安装限位圈，能够简化缸孔的加工、降低加工成本。